just recently got into total war: warhammer 2
it's pretty cool, great mix of the best parts of games like civ and age of empires
humble store sale also means even cheaper if doing humble monthly things as well
https://www.humblebundle.com/store/promo/total-war-week/sale is for another 3.5 days
if you're new to it, i'd highly recommend getting both warhammer 1 and 2, since 1 will add its content to a giant map to play in 2
also note that it's mostly a 2 player game if doing coop, but quite fun solo